Neurological difficulties following Coronary artery bypass graft (CABG), such as cognitive decline and depression are well known. The prevalence for cognitive decline has been shown to vary from 33% to 83% and for depression 25%. The aim was to look at cognitive function, depression and anxiety following CABG. The participants were 13 patients that had CABG at Landspitali. They were 10 men and 3 women and they were between the age of 53 and 73 (M = 65.77). Seven cognitive domains were examined with eight different neuropsychological tests, depression and anxiety were examined with Beck’s Anxiety Inventory and Beck’s Depression Inventory. Patients with cognitive impairment according to EEG measurements were compared to patients with normal cognitive function according to EEG. The groups were compared using independent-samples t-test on the difference that was computed for each participant between pre- and post-surgery. None of the test for the seven cognitive domains and the depression and anxiety appeared to be significant. These results showed that no changes are evident in cognitive function, depression or anxiety measurers following CABG. Since the number of participants was limited the study lacks power and the results should be considered with notice.